Home / 2,920.38-4,030.12-1,872.44

Finding the Fourth Proportional to 2,920.38, 4,030.12 and 1,872.44

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Solution

The fourth proportional to 2,920.38, 4,030.12 and 1,872.44 is: 2,583.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.38 : 4,030.12 = 1,872.44 : x
  2. Step 2: Convert to fraction form
    2,920.38/4,030.12 = 1,872.44/x
  3. Step 3: Cross multiply
    2,920.38x = 4,030.12 × 1,872.44
  4. Step 4: Simplify right side
    2,920.38x = 7,546,152.50
  5. Step 5: Solve for x
    x = 7,546,152.50/2,920.38
  6. Step 6: Final answer
    x = 2,583.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.